| Autor(en): |
Edmund Marth, Gerald Jungmayr und Wolfgang Amrhein |
| Journal: |
IEEE Transactions on Magnetics |
| Jahr: |
2013 |
| Band: |
VOL. 50, NO. 5, MAY 2014 50 |
| Ausgabe: |
5 |
| Reihe: |
ISSN 0018-9464 ISSN 0018-9464 ISSN: 0018-9464 ISSN: 0018-9464 ISSN: 00189464 |
| Seite(n): |
8 |
| Verlag: |
IEEE Magnetics Society |
| Zusammenfassung: |
This paper investigates the optimal design of passive permanent magnetic bearings in terms of maximum stiffness per magnet volume ratio. Examining the inuence of design parameters on maximum material utilization, we present general conclusions regarding cross-section dimension, type of magnetization, and magnetic pole number. Further, we provide generalized design plots for selected congurations, which can be used for rapid dimensioning of bearings with adequate raw material utilization. The analytical computation method used for all calculations is based on the interaction energy of elementary magnetic dipoles and thus supports any kind of magnetization, including when strength and direction may vary within the cross-section of the magnetic rings. Although the design problem is three-dimensional and the analytical method two-dimensional, the resulting error is negligible for most practical applications. |
